Ex-NFL CheerleaderAccused of Grabbing 12-Year-Old's Penis

3/21/2013 9:30 AM PDT

A former NFL cheerleader has been charged with aggravated sexual battery after allegedly grabbing a 12-year-old boy's penis outside his pants ... and attempting to perform oral sex on him.

42-year-old Elizabeth Garner -- who cheered for the Tennessee Titans until 2009 -- was also charged with solicitation of a minor for rape of a child.

According to law enforcement, Garner -- who is married -- is accused of following the 12-year-old to the bathroom during a party last month hosted by the boy's mother, grabbing his penis over his shorts ... and attempting to remove them in order to perform oral sex on him.

The boy escaped, told his mother what happened ... and the mother then informed authorities. According to police, the boy said Garner asked if he'd ever been with a woman.

During a police interview, cops claim Garner willingly admitted she approached the boy ... but said she was drunk and had confused him with an (adult) man at the party. (We'll see how that defense pans out.)

Garner -- who was booked on $30,000 bond -- faces more than 8 years in prison if convicted.